(57) Apparatus for transferring power from the battery (256) of a service vehicle to the
battery (258) of a second vehicle, wherein the final connection between the batteries
is made from a remote location via a radio transmitter (80) and a receiver (270) which
is mounted in the casing (22) of the apparatus to actuate a solenoid (72) in response
to a signal from the transmitter (80). The circuit between the solenoid (72) and the
receiver (270) includes a transistor (280) to control current through the solenoid
coil (268) and the base of the transistor (280) is connected to the battery (258)
of the second vehicle. Cables (28, 30) used to attach the apparatus to the second
vehicle battery (258) are wound on a spool (26) having an interrupted ratchet (88)
on one end thereof, the ratchet (88) engaging a ratchet lock (90) that pivots in one
direction to hold the reel (24) when the reel (24) is turned in one direction to pay
out the battery cables (28,30) and the ratchet lock (90) pivoting in the other direction
within a ratchet wheel interruption to permit free rotation of the reel (24) in the
opposite direction for retrieval of the cables (28, 30) on the reel (24).
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